How to send checkbox data to email?

Question

Email

How to send the label text of the selected radio to the mail?
For example, with markup like this:

<form>
   <label><input type="radio">Пример 1</label>
   <label><input type="radio">Пример 2</label>
   <label><input type="radio">Пример 3</label>
</form>

Answer 1

<form>
   <label><input type="radio" name="test" value="val_1">Пример 1</label>
   <label><input type="radio" name="test" value="val_2">Пример 2</label>
   <label><input type="radio" name="test" value="val_3">Пример 3</label>
</form>